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JAN 23 '98 02:23PM PLNG DIV OMAHA DIST ACOE P.5/.... , -,. In this example. the life of the home was assumed to be 30 years along wilb an interest rate of 10 percent for borrowing money for flood proofinll. From Table A-S, a present worth factor of 9.4269 Was ob- tained. Multiplying this factor by average annual damages of $1 1.535 prevented by flood proofing, a present-day woIth of $ 1 08.700 for damage prevented over Ibe life of the home was computed. If future flood events occurred like past ones. flood proofing costs equal to or less than the present-day value of damllie would normally be economically justified. a LOOD PROOFING COSTS The cost of flood proofina a building \lI1l1 depend on a vanety of factors mcludmg the bUild- ing's condition, the flood proofing technique to be employed, and olber site-specific issues such as soil conditions and flooding levels. Information from experienced flood proofing constrUction costS adjusted for location and updated to January 1993 are provided to assist in economic analysis and to provide building owners estimates of costs for reconnaissance type planning of flood proofing meas- ures. Data from Means Construction Costs publications were used to adjust and supplement actual construction'costs obtained from FEMA. COE, and other sources. The Means publications contain adjustment tables for comparina averaae constrUction costs for Ibe United States with costs for individual cities. There is also a table for updating historical costs to present-day cost values, These tables are included in the annual editions of cost data published by MeaRS. The Engineering News-Record and other publications contain similar COst data. Add 10 percent to estimated costs to account for contrllctors profit. Professional enalneerina desiiD of selected flood proofing measures should also be factored into the total coal Elevation Wood Fl3IIle Buitding on Piles. Posts or Piers ~...................................................... $26 per .quare foot Wood Frame Building on Foundation Wallsl..........................................................$19 per square foot Brick Buildinll'.................................................................................:................, ..... S32 per square foot I These costs include foundation. eJ:l4nding urlllfl,s, aM mlscellan,ouf Irems, f~h as sidewalks and driveways. They do IIOr Include the COfr offill or landscoplrrg. Slab-on-Grade Buitding ~:~......................:....................................... .......,. 0" ............. $30 per square fOOl , Th, unit cOSt is based on 0 2-foor raise. Add $1 per squm,foorfor each additionDlfoot raise lip to eighf feet. Fill (includes hauling lItId compaclion) ..................................................................SIO per cubic yard Landscapinll (no trees. bushes. or flowers) ............................................................$ 5 per square yard Relocation Moving Building (complex buildings being moved several mile.).....................". $10 per square foot Moving Bulldinll..................................".................................."..........................".$ 5 per square fOOl (simple wood frame building being moved a few hundred feel) Additional rostsfor lhis meofUJ'e ,,'ill include: rh, opproprlate elevotion rost listed obove oM may alfo indude:fill.lol, /ondscoplng. ond perTlnePll i"dlrerl .OIlS. Flood walls and Levees l'100dwans. two feet above sround level..................."...............".."........."."........$ 77 per lincar fOOl FloodwaJls. four feel above ground level ........................."....................""............$113 per lineadoor F100dwaUs. sil< feet above ground level ........................................................."......SI6O per linear fOOl A.19